3v4l.org

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<?php interface bird { function setKind(string $type); /*function getKind(); function getLocation(); function setLocation(location $location); function flyTo(location $location); function setMelody(string $melody); function singMelody(); // вывод зависит от kind function killBird();*/ function cloneBird(int $count); } class Sparrow implements bird { public function cloneBird(int $count) { echo $count; } public function setKind(string $type) { echo $count; } } $s = new Sparrow(); $s->cloneBird(3); $s->setKind(3);
Output for git.master, git.master_jit, rfc.property-hooks
3 Warning: Undefined variable $count in /in/a8MV4 on line 31

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